CGT-H2100 Hydrogen Gas Detector

CGT-H2100 Hydrogen Combustible Gas Detector for BESS

Test Gas: H₂(hydrogen gas)

Sensor Type: conduction of heat

Sensor Service Life: 15 years

Working temperature: -40℃ to 70℃

Protection Rating: IP66

Certification: ATEX, IECEx, CE, RoHS

 

Product Advantages

1. Long service life & calibration-free

Thermal conductivity sensor with a 15-year service life under normal working conditions, cutting frequent calibration costs.

2. Explosion-proof & high protection rating

Flameproof design with Ex db IIC T6 certification and IP66 ingress protection, suitable for gas and dust hazardous explosive zones.

3.Dual alarm output

Two-stage hydrogen alarm (Low: 10%LEL / High: 25%LEL), dual signal transmission via RS485 and two dry contact relays.

4. Wide operating condition adaptability

Stable operation at -40℃ ~ +70℃ and 5%~95%RH, ideal for harsh energy storage environments.

5. Modular & easy maintenance

Split housing design, simple dust cleaning every 6 months, on-site parameter configuration via infrared remote controller.

6. Anti-interference performance

Built-in reverse power protection, single-point shield grounding for RS485 bus; supports networking of up to 32 detectors on one bus.

 

Product Images

 

Product Certificate

The product has obtained international certifications such as ATEx, IECEx, CE, and ROHS.

 

Installation location

 

Product parameters

Type	Specific parameters
Appearance parameter
Pigment	dark grey
Shell material	die-casting aluminium
Outline dimension	approximately 100 mm × 78 mm × 53 mm
Product weight	approximately 420 g
Function parameter
Test gas	H₂ (hydrogen gas)
Sensor type	electrochemical sensor
Sample mode	natural diffusion
Detection range	(0~ 100)% LEL
Operate mode	continuous monitoring
Alarm value setting range (Two-level alarm)	The minimum factory alarm threshold is set at 10% LEL. The maximum alarm threshold for factory output is set at 25% LEL.
Alarm error	±3%LEL
Range indication deviation	allowable error: ± 5% LEL
Alarming light visibility	> 5 m (in darkness)
Response time	≤ 15s
Call time	≤ 15s
Resolution ratio	0.1%LEL
Zero drift range	≤ 3%LEL
Sensor service life	normal monitoring environment for 15 years
Electrical parameters
Working voltage	18VDC-32VDC
Rated voltage	24VDC
Power dissipation	≤ 1W
Working current	≤15 mA
Alarm current	≤ 35mA
Maximum current	≤ 35mA
Output signal	RS485 (optional) [The communication address defaults to 1 at factory; a built-in 120Ω matching resistor is not connected by default and can be enabled using a jumper cap]
Baud rate	9600 bps
Dry contact 1 – Low alarm relay	Group 1: Contact capacity (resistance load): 1A @30VDC; 300 mA @ 125VAC. Factory default: Open during normal operation, close during alarms, open during power loss.
Dry contact 2 – High alarm  relay	Group 1: Contact capacity (resistance load): 1A @30VDC; 300 mA @ 125VAC. Factory default: Open during normal operation, close during alarms, open during power loss.
Indicate way
Pilot lamp	3 LED status lights
State indication	1. During normal operation: The green indicator light remains illuminated continuously
	2. In case of a malfunction: The yellow indicator light remains constantly illuminated.
	3. Alarm indication: When the lower limit is exceeded, a red light flashes; when the upper limit is exceeded, the red light remains on continuously.
	4. During the upgrade process: Red, yellow, and green lights will flash alternately.
Upgrade and configuration parameters	Can be connected to a computer via the RS485 bus (optional)
Certification and protection level
Attestation	ROHS， CE ，ATEx， IECEx
Protect grade	IP66
Explosion-proof mark	II2 G Ex db IIC T6 Gb II2 D Ex tb IIIC T80°C Db

 

Application Scenarios

Real-time hydrogen concentration monitoring for power storage stations, energy storage containers, battery cabinets and battery compartments. Compatible with Zone 1/2, IIA/IIB/IIC explosive gas and dust hazardous environments.

 

FAQ

Q1: What are the factory-set alarm thresholds and detection range?

A1: Measuring range: 0~100%LEL hydrogen; factory low alarm at 10%LEL, high alarm at 25%LEL. Thresholds adjustable via remote controller.

 

Q2: What is the power supply range and communication parameter?

A2: Operating voltage: 18~32VDC (rated 24VDC); RS485 baud rate: 9600, max. 32 detectors per bus.

 

Q3: What do different indicator light statuses mean?

A3: Steady green = normal operation; steady yellow = fault; flashing red = low alarm; steady red = high alarm.

 

Q4: What are the regular maintenance cycles for the sensor?

A4: Clean dust on air inlet every 6 months; conduct alarm test once a year; recheck measurement accuracy annually after the end of service life.

 

Q5: Mandatory installation & explosion-proof requirements?

A5: Install vertically with sensor pointing downward; reliable housing grounding (ground resistance ＜4Ω); never open the housing live in hazardous areas.